21252945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{202409}}^1$

素因数の和:202424

約数の個数: 16

約数和(自身を含む): 38862720

約数和(自身を除く): 17609775

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 202409, 607227, 1012045, 1416863, 3036135, 4250589, 7084315, 21252945]

約数ペア:

[(1, 21252945), (3, 7084315), (5, 4250589), (7, 3036135), (15, 1416863), (21, 1012045), (35, 607227), (105, 202409)]